Why can't I set attribute directly on instance when in hooks?

[ktmud]

I want to do something like:

var Passport = db.define('passport', {
  password: String, // password hashed
})

Passport.validatesLengthOf('password', {min: 6});
Passport.afterValidate = function() {
    this.password = Passport.hash(this.password)
}

But actually, I have to do

Passport.afterValidate = function(next, data) {
    data.password = Passport.hash(data.password)
    next()
}

This is not well documented, and it takes me quite a while to figure out what's going on.

I'm just curious, why not just allow people to set instance attribute directly, instead of passing data round and round?

[ktmud]

Oh, wait, I cannot do the later, either, since data is not passed to afterHooks...